Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon showing our new design according to a first embodiment; and,

FIG. 2 is a front view of a display screen or portion thereof with icon showing our new design according to a second embodiment.

The outer perimeter shown in dashed broken lines in the figures illustrates a display screen or portion thereof and forms no part of the claimed design.

The black of the circle and white of the icon in FIG. 1, and the black of the icon and white of the background in FIG. 2, illustrate a contrasting appearance. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 